Another turbo conversion comes to life

[Todd Phenneger]

Ti,
  I've tried a different ECU so that rules out the ECU.  Has to
be wirign somewhere.  I'll have to wait till the car is back
from the paint shop before I Investigate further though.
  I'll let you know what I find.
Thanks
  Todd

--- Ti Kan <ti at amb.org> wrote:
> OK, if you're sure the wiring and the relay is ok, then it's
> possible
> that someone had "hotwired" the plug at the ECU, or perhaps
> within
> the ECU itself.  There is also a possibility, although
> unlikely, that
> the ECU is not functioning correctly in this area (a shorted
> out switching
> transistor or something?).
>
> -Ti
> 2003 A4 1.8T multitronic
> 2001 S4 biturbo 6-sp
> 1984 5000S turbo
> 1980 4000 2.0 5-sp
> --
>     ///  Ti Kan                Vorsprung durch Technik
>    ///   AMB Laboratories, Sunnyvale, CA. USA
>   ///    ti at amb.org
>  //////  http://www.amb.org/ti/
> ///
>
> Todd Phenneger writes:
> >  I have tried 3 different relays.  The original KH unit and
> some
> > MC relays.  (They seem to be the same relay)
> >   I have also gone over the wiring numerous times.  THe only
> > wire to the FPR is the ground that goes to the ECU.  Without
> it
> > the pump will never run.  I have the hooked up correctly.
> > Unless someone bypassed it inside the harness sometime.  IF
> you
> > bridge "jumper" that ground wire directly to ground I spose
> this
> > would cause that.  Maybe I should look at the plug at the
> ECU
> > end and look for tampering.
> >  Hmm,
> >    Do you see any holes in my theory.
> >
> > --- Ti Kan <ti at amb.org> wrote:
> > > Todd Phenneger wrote:
> > > >I will support both of Huw's statement.  If you need I
> can go
> > > >outside and check my Kh but the the wire that goes to
> circuit
> > > BS
> > > >will indeed make your MC/KH fuel pump relay work
> properly.  I
> > > >just spliced mine in.  Works great.
> > > >  My overboost FPR Cutoff has NEVER worked on 4ktq
> conversion
> > > >though, and my Fuel Pump runs all the time when the
> ignition
> > > is
> > > >on.  I'm curious if you have the same problem after you
> > > finish
> > > >your conversion.  If you do I want to compare wiring
> notes.
> > >
> > > If your FP relay runs all the time as soon as the ignition
> key
> > > is
> > > turned on, and the overboost cutout doesn't work, then I'd
> say
> > > either the FP relay is not wired up correctly, or you're
> using
> > > the
> > > wrong relay.
>
>


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